2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
6 % PPPP IIIII CCCC TTTTT %
13 % Read/Write Apple Macintosh QuickDraw/PICT Format %
20 % Copyright 1999-2014 ImageMagick Studio LLC, a non-profit organization %
21 % dedicated to making software imaging solutions freely available. %
23 % You may not use this file except in compliance with the License. You may %
24 % obtain a copy of the License at %
26 % http://www.imagemagick.org/script/license.php %
28 % Unless required by applicable law or agreed to in writing, software %
29 % distributed under the License is distributed on an "AS IS" BASIS, %
30 % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. %
31 % See the License for the specific language governing permissions and %
32 % limitations under the License. %
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
42 #include "MagickCore/studio.h"
43 #include "MagickCore/blob.h"
44 #include "MagickCore/blob-private.h"
45 #include "MagickCore/cache.h"
46 #include "MagickCore/color-private.h"
47 #include "MagickCore/colormap.h"
48 #include "MagickCore/colormap-private.h"
49 #include "MagickCore/colorspace.h"
50 #include "MagickCore/colorspace-private.h"
51 #include "MagickCore/composite.h"
52 #include "MagickCore/constitute.h"
53 #include "MagickCore/exception.h"
54 #include "MagickCore/exception-private.h"
55 #include "MagickCore/image.h"
56 #include "MagickCore/image-private.h"
57 #include "MagickCore/list.h"
58 #include "MagickCore/log.h"
59 #include "MagickCore/magick.h"
60 #include "MagickCore/memory_.h"
61 #include "MagickCore/monitor.h"
62 #include "MagickCore/monitor-private.h"
63 #include "MagickCore/pixel-accessor.h"
64 #include "MagickCore/profile.h"
65 #include "MagickCore/resource_.h"
66 #include "MagickCore/quantum-private.h"
67 #include "MagickCore/static.h"
68 #include "MagickCore/string_.h"
69 #include "MagickCore/module.h"
70 #include "MagickCore/transform.h"
71 #include "MagickCore/utility.h"
74 ImageMagick Macintosh PICT Methods.
76 #define ReadPixmap(pixmap) \
78 pixmap.version=(short) ReadBlobMSBShort(image); \
79 pixmap.pack_type=(short) ReadBlobMSBShort(image); \
80 pixmap.pack_size=ReadBlobMSBLong(image); \
81 pixmap.horizontal_resolution=1UL*ReadBlobMSBShort(image); \
82 (void) ReadBlobMSBShort(image); \
83 pixmap.vertical_resolution=1UL*ReadBlobMSBShort(image); \
84 (void) ReadBlobMSBShort(image); \
85 pixmap.pixel_type=(short) ReadBlobMSBShort(image); \
86 pixmap.bits_per_pixel=(short) ReadBlobMSBShort(image); \
87 pixmap.component_count=(short) ReadBlobMSBShort(image); \
88 pixmap.component_size=(short) ReadBlobMSBShort(image); \
89 pixmap.plane_bytes=ReadBlobMSBLong(image); \
90 pixmap.table=ReadBlobMSBLong(image); \
91 pixmap.reserved=ReadBlobMSBLong(image); \
92 if ((pixmap.bits_per_pixel <= 0) || (pixmap.bits_per_pixel > 32) || \
93 (pixmap.component_count <= 0) || (pixmap.component_count > 4) || \
94 (pixmap.component_size <= 0)) \
95 ThrowReaderException(CorruptImageError,"ImproperImageHeader"); \
98 typedef struct _PICTCode
110 typedef struct _PICTPixmap
118 horizontal_resolution,
133 typedef struct _PICTRectangle
142 static const PICTCode
145 /* 0x00 */ { "NOP", 0, "nop" },
146 /* 0x01 */ { "Clip", 0, "clip" },
147 /* 0x02 */ { "BkPat", 8, "background pattern" },
148 /* 0x03 */ { "TxFont", 2, "text font (word)" },
149 /* 0x04 */ { "TxFace", 1, "text face (byte)" },
150 /* 0x05 */ { "TxMode", 2, "text mode (word)" },
151 /* 0x06 */ { "SpExtra", 4, "space extra (fixed point)" },
152 /* 0x07 */ { "PnSize", 4, "pen size (point)" },
153 /* 0x08 */ { "PnMode", 2, "pen mode (word)" },
154 /* 0x09 */ { "PnPat", 8, "pen pattern" },
155 /* 0x0a */ { "FillPat", 8, "fill pattern" },
156 /* 0x0b */ { "OvSize", 4, "oval size (point)" },
157 /* 0x0c */ { "Origin", 4, "dh, dv (word)" },
158 /* 0x0d */ { "TxSize", 2, "text size (word)" },
159 /* 0x0e */ { "FgColor", 4, "foreground color (ssize_tword)" },
160 /* 0x0f */ { "BkColor", 4, "background color (ssize_tword)" },
161 /* 0x10 */ { "TxRatio", 8, "numerator (point), denominator (point)" },
162 /* 0x11 */ { "Version", 1, "version (byte)" },
163 /* 0x12 */ { "BkPixPat", 0, "color background pattern" },
164 /* 0x13 */ { "PnPixPat", 0, "color pen pattern" },
165 /* 0x14 */ { "FillPixPat", 0, "color fill pattern" },
166 /* 0x15 */ { "PnLocHFrac", 2, "fractional pen position" },
167 /* 0x16 */ { "ChExtra", 2, "extra for each character" },
168 /* 0x17 */ { "reserved", 0, "reserved for Apple use" },
169 /* 0x18 */ { "reserved", 0, "reserved for Apple use" },
170 /* 0x19 */ { "reserved", 0, "reserved for Apple use" },
171 /* 0x1a */ { "RGBFgCol", 6, "RGB foreColor" },
172 /* 0x1b */ { "RGBBkCol", 6, "RGB backColor" },
173 /* 0x1c */ { "HiliteMode", 0, "hilite mode flag" },
174 /* 0x1d */ { "HiliteColor", 6, "RGB hilite color" },
175 /* 0x1e */ { "DefHilite", 0, "Use default hilite color" },
176 /* 0x1f */ { "OpColor", 6, "RGB OpColor for arithmetic modes" },
177 /* 0x20 */ { "Line", 8, "pnLoc (point), newPt (point)" },
178 /* 0x21 */ { "LineFrom", 4, "newPt (point)" },
179 /* 0x22 */ { "ShortLine", 6, "pnLoc (point, dh, dv (-128 .. 127))" },
180 /* 0x23 */ { "ShortLineFrom", 2, "dh, dv (-128 .. 127)" },
181 /* 0x24 */ { "reserved", -1, "reserved for Apple use" },
182 /* 0x25 */ { "reserved", -1, "reserved for Apple use" },
183 /* 0x26 */ { "reserved", -1, "reserved for Apple use" },
184 /* 0x27 */ { "reserved", -1, "reserved for Apple use" },
185 /* 0x28 */ { "LongText", 0, "txLoc (point), count (0..255), text" },
186 /* 0x29 */ { "DHText", 0, "dh (0..255), count (0..255), text" },
187 /* 0x2a */ { "DVText", 0, "dv (0..255), count (0..255), text" },
188 /* 0x2b */ { "DHDVText", 0, "dh, dv (0..255), count (0..255), text" },
189 /* 0x2c */ { "reserved", -1, "reserved for Apple use" },
190 /* 0x2d */ { "reserved", -1, "reserved for Apple use" },
191 /* 0x2e */ { "reserved", -1, "reserved for Apple use" },
192 /* 0x2f */ { "reserved", -1, "reserved for Apple use" },
193 /* 0x30 */ { "frameRect", 8, "rect" },
194 /* 0x31 */ { "paintRect", 8, "rect" },
195 /* 0x32 */ { "eraseRect", 8, "rect" },
196 /* 0x33 */ { "invertRect", 8, "rect" },
197 /* 0x34 */ { "fillRect", 8, "rect" },
198 /* 0x35 */ { "reserved", 8, "reserved for Apple use" },
199 /* 0x36 */ { "reserved", 8, "reserved for Apple use" },
200 /* 0x37 */ { "reserved", 8, "reserved for Apple use" },
201 /* 0x38 */ { "frameSameRect", 0, "rect" },
202 /* 0x39 */ { "paintSameRect", 0, "rect" },
203 /* 0x3a */ { "eraseSameRect", 0, "rect" },
204 /* 0x3b */ { "invertSameRect", 0, "rect" },
205 /* 0x3c */ { "fillSameRect", 0, "rect" },
206 /* 0x3d */ { "reserved", 0, "reserved for Apple use" },
207 /* 0x3e */ { "reserved", 0, "reserved for Apple use" },
208 /* 0x3f */ { "reserved", 0, "reserved for Apple use" },
209 /* 0x40 */ { "frameRRect", 8, "rect" },
210 /* 0x41 */ { "paintRRect", 8, "rect" },
211 /* 0x42 */ { "eraseRRect", 8, "rect" },
212 /* 0x43 */ { "invertRRect", 8, "rect" },
213 /* 0x44 */ { "fillRRrect", 8, "rect" },
214 /* 0x45 */ { "reserved", 8, "reserved for Apple use" },
215 /* 0x46 */ { "reserved", 8, "reserved for Apple use" },
216 /* 0x47 */ { "reserved", 8, "reserved for Apple use" },
217 /* 0x48 */ { "frameSameRRect", 0, "rect" },
218 /* 0x49 */ { "paintSameRRect", 0, "rect" },
219 /* 0x4a */ { "eraseSameRRect", 0, "rect" },
220 /* 0x4b */ { "invertSameRRect", 0, "rect" },
221 /* 0x4c */ { "fillSameRRect", 0, "rect" },
222 /* 0x4d */ { "reserved", 0, "reserved for Apple use" },
223 /* 0x4e */ { "reserved", 0, "reserved for Apple use" },
224 /* 0x4f */ { "reserved", 0, "reserved for Apple use" },
225 /* 0x50 */ { "frameOval", 8, "rect" },
226 /* 0x51 */ { "paintOval", 8, "rect" },
227 /* 0x52 */ { "eraseOval", 8, "rect" },
228 /* 0x53 */ { "invertOval", 8, "rect" },
229 /* 0x54 */ { "fillOval", 8, "rect" },
230 /* 0x55 */ { "reserved", 8, "reserved for Apple use" },
231 /* 0x56 */ { "reserved", 8, "reserved for Apple use" },
232 /* 0x57 */ { "reserved", 8, "reserved for Apple use" },
233 /* 0x58 */ { "frameSameOval", 0, "rect" },
234 /* 0x59 */ { "paintSameOval", 0, "rect" },
235 /* 0x5a */ { "eraseSameOval", 0, "rect" },
236 /* 0x5b */ { "invertSameOval", 0, "rect" },
237 /* 0x5c */ { "fillSameOval", 0, "rect" },
238 /* 0x5d */ { "reserved", 0, "reserved for Apple use" },
239 /* 0x5e */ { "reserved", 0, "reserved for Apple use" },
240 /* 0x5f */ { "reserved", 0, "reserved for Apple use" },
241 /* 0x60 */ { "frameArc", 12, "rect, startAngle, arcAngle" },
242 /* 0x61 */ { "paintArc", 12, "rect, startAngle, arcAngle" },
243 /* 0x62 */ { "eraseArc", 12, "rect, startAngle, arcAngle" },
244 /* 0x63 */ { "invertArc", 12, "rect, startAngle, arcAngle" },
245 /* 0x64 */ { "fillArc", 12, "rect, startAngle, arcAngle" },
246 /* 0x65 */ { "reserved", 12, "reserved for Apple use" },
247 /* 0x66 */ { "reserved", 12, "reserved for Apple use" },
248 /* 0x67 */ { "reserved", 12, "reserved for Apple use" },
249 /* 0x68 */ { "frameSameArc", 4, "rect, startAngle, arcAngle" },
250 /* 0x69 */ { "paintSameArc", 4, "rect, startAngle, arcAngle" },
251 /* 0x6a */ { "eraseSameArc", 4, "rect, startAngle, arcAngle" },
252 /* 0x6b */ { "invertSameArc", 4, "rect, startAngle, arcAngle" },
253 /* 0x6c */ { "fillSameArc", 4, "rect, startAngle, arcAngle" },
254 /* 0x6d */ { "reserved", 4, "reserved for Apple use" },
255 /* 0x6e */ { "reserved", 4, "reserved for Apple use" },
256 /* 0x6f */ { "reserved", 4, "reserved for Apple use" },
257 /* 0x70 */ { "framePoly", 0, "poly" },
258 /* 0x71 */ { "paintPoly", 0, "poly" },
259 /* 0x72 */ { "erasePoly", 0, "poly" },
260 /* 0x73 */ { "invertPoly", 0, "poly" },
261 /* 0x74 */ { "fillPoly", 0, "poly" },
262 /* 0x75 */ { "reserved", 0, "reserved for Apple use" },
263 /* 0x76 */ { "reserved", 0, "reserved for Apple use" },
264 /* 0x77 */ { "reserved", 0, "reserved for Apple use" },
265 /* 0x78 */ { "frameSamePoly", 0, "poly (NYI)" },
266 /* 0x79 */ { "paintSamePoly", 0, "poly (NYI)" },
267 /* 0x7a */ { "eraseSamePoly", 0, "poly (NYI)" },
268 /* 0x7b */ { "invertSamePoly", 0, "poly (NYI)" },
269 /* 0x7c */ { "fillSamePoly", 0, "poly (NYI)" },
270 /* 0x7d */ { "reserved", 0, "reserved for Apple use" },
271 /* 0x7e */ { "reserved", 0, "reserved for Apple use" },
272 /* 0x7f */ { "reserved", 0, "reserved for Apple use" },
273 /* 0x80 */ { "frameRgn", 0, "region" },
274 /* 0x81 */ { "paintRgn", 0, "region" },
275 /* 0x82 */ { "eraseRgn", 0, "region" },
276 /* 0x83 */ { "invertRgn", 0, "region" },
277 /* 0x84 */ { "fillRgn", 0, "region" },
278 /* 0x85 */ { "reserved", 0, "reserved for Apple use" },
279 /* 0x86 */ { "reserved", 0, "reserved for Apple use" },
280 /* 0x87 */ { "reserved", 0, "reserved for Apple use" },
281 /* 0x88 */ { "frameSameRgn", 0, "region (NYI)" },
282 /* 0x89 */ { "paintSameRgn", 0, "region (NYI)" },
283 /* 0x8a */ { "eraseSameRgn", 0, "region (NYI)" },
284 /* 0x8b */ { "invertSameRgn", 0, "region (NYI)" },
285 /* 0x8c */ { "fillSameRgn", 0, "region (NYI)" },
286 /* 0x8d */ { "reserved", 0, "reserved for Apple use" },
287 /* 0x8e */ { "reserved", 0, "reserved for Apple use" },
288 /* 0x8f */ { "reserved", 0, "reserved for Apple use" },
289 /* 0x90 */ { "BitsRect", 0, "copybits, rect clipped" },
290 /* 0x91 */ { "BitsRgn", 0, "copybits, rgn clipped" },
291 /* 0x92 */ { "reserved", -1, "reserved for Apple use" },
292 /* 0x93 */ { "reserved", -1, "reserved for Apple use" },
293 /* 0x94 */ { "reserved", -1, "reserved for Apple use" },
294 /* 0x95 */ { "reserved", -1, "reserved for Apple use" },
295 /* 0x96 */ { "reserved", -1, "reserved for Apple use" },
296 /* 0x97 */ { "reserved", -1, "reserved for Apple use" },
297 /* 0x98 */ { "PackBitsRect", 0, "packed copybits, rect clipped" },
298 /* 0x99 */ { "PackBitsRgn", 0, "packed copybits, rgn clipped" },
299 /* 0x9a */ { "DirectBitsRect", 0, "PixMap, srcRect, dstRect, mode, PixData" },
300 /* 0x9b */ { "DirectBitsRgn", 0, "PixMap, srcRect, dstRect, mode, maskRgn, PixData" },
301 /* 0x9c */ { "reserved", -1, "reserved for Apple use" },
302 /* 0x9d */ { "reserved", -1, "reserved for Apple use" },
303 /* 0x9e */ { "reserved", -1, "reserved for Apple use" },
304 /* 0x9f */ { "reserved", -1, "reserved for Apple use" },
305 /* 0xa0 */ { "ShortComment", 2, "kind (word)" },
306 /* 0xa1 */ { "LongComment", 0, "kind (word), size (word), data" }
310 Forward declarations.
312 static MagickBooleanType
313 WritePICTImage(const ImageInfo *,Image *,ExceptionInfo *);
316 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
320 % D e c o d e I m a g e %
324 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
326 % DecodeImage decompresses an image via Macintosh pack bits decoding for
327 % Macintosh PICT images.
329 % The format of the DecodeImage method is:
331 % unsigned char *DecodeImage(Image *blob,Image *image,
332 % size_t bytes_per_line,const int bits_per_pixel,
333 % unsigned size_t extent)
335 % A description of each parameter follows:
337 % o image_info: the image info.
339 % o blob,image: the address of a structure of type Image.
341 % o bytes_per_line: This integer identifies the number of bytes in a
344 % o bits_per_pixel: the number of bits in a pixel.
346 % o extent: the number of pixels allocated.
350 static unsigned char *ExpandBuffer(unsigned char *pixels,
351 MagickSizeType *bytes_per_line,const unsigned int bits_per_pixel)
356 register unsigned char
365 switch (bits_per_pixel)
373 for (i=0; i < (ssize_t) *bytes_per_line; i++)
375 *q++=(*p >> 4) & 0xff;
384 for (i=0; i < (ssize_t) *bytes_per_line; i++)
386 *q++=(*p >> 6) & 0x03;
387 *q++=(*p >> 4) & 0x03;
388 *q++=(*p >> 2) & 0x03;
397 for (i=0; i < (ssize_t) *bytes_per_line; i++)
399 *q++=(*p >> 7) & 0x01;
400 *q++=(*p >> 6) & 0x01;
401 *q++=(*p >> 5) & 0x01;
402 *q++=(*p >> 4) & 0x01;
403 *q++=(*p >> 3) & 0x01;
404 *q++=(*p >> 2) & 0x01;
405 *q++=(*p >> 1) & 0x01;
418 static unsigned char *DecodeImage(Image *blob,Image *image,
419 size_t bytes_per_line,const unsigned int bits_per_pixel,size_t *extent,
420 ExceptionInfo *exception)
428 register unsigned char
449 Determine pixel buffer size.
451 if (bits_per_pixel <= 8)
452 bytes_per_line&=0x7fff;
453 width=image->columns;
455 if (bits_per_pixel == 16)
461 if (bits_per_pixel == 32)
462 width*=image->alpha_trait ? 4 : 3;
463 if (bytes_per_line == 0)
464 bytes_per_line=width;
465 row_bytes=(size_t) (image->columns | 0x8000);
466 if (image->storage_class == DirectClass)
467 row_bytes=(size_t) ((4*image->columns) | 0x8000);
469 Allocate pixel and scanline buffer.
471 pixels=(unsigned char *) AcquireQuantumMemory(image->rows,row_bytes*
473 if (pixels == (unsigned char *) NULL)
474 return((unsigned char *) NULL);
475 *extent=row_bytes*image->rows*sizeof(*pixels);
476 (void) ResetMagickMemory(pixels,0,*extent);
477 scanline=(unsigned char *) AcquireQuantumMemory(row_bytes,sizeof(*scanline));
478 if (scanline == (unsigned char *) NULL)
479 return((unsigned char *) NULL);
480 if (bytes_per_line < 8)
483 Pixels are already uncompressed.
485 for (y=0; y < (ssize_t) image->rows; y++)
487 q=pixels+y*width*GetPixelChannels(image);;
488 number_pixels=bytes_per_line;
489 count=ReadBlob(blob,(size_t) number_pixels,scanline);
491 p=ExpandBuffer(scanline,&number_pixels,bits_per_pixel);
492 if ((q+number_pixels) > (pixels+(*extent)))
494 (void) ThrowMagickException(exception,GetMagickModule(),
495 CorruptImageError,"UnableToUncompressImage","`%s'",
499 (void) CopyMagickMemory(q,p,(size_t) number_pixels);
501 scanline=(unsigned char *) RelinquishMagickMemory(scanline);
505 Uncompress RLE pixels into uncompressed pixel buffer.
507 for (y=0; y < (ssize_t) image->rows; y++)
510 if (bytes_per_line > 200)
511 scanline_length=ReadBlobMSBShort(blob);
513 scanline_length=1UL*ReadBlobByte(blob);
514 if (scanline_length >= row_bytes)
516 (void) ThrowMagickException(exception,GetMagickModule(),
517 CorruptImageError,"UnableToUncompressImage","`%s'",image->filename);
520 count=ReadBlob(blob,scanline_length,scanline);
521 for (j=0; j < (ssize_t) scanline_length; )
522 if ((scanline[j] & 0x80) == 0)
524 length=(size_t) ((scanline[j] & 0xff)+1);
525 number_pixels=length*bytes_per_pixel;
526 p=ExpandBuffer(scanline+j+1,&number_pixels,bits_per_pixel);
527 if ((q-pixels+number_pixels) <= *extent)
528 (void) CopyMagickMemory(q,p,(size_t) number_pixels);
530 j+=(ssize_t) (length*bytes_per_pixel+1);
534 length=(size_t) (((scanline[j] ^ 0xff) & 0xff)+2);
535 number_pixels=bytes_per_pixel;
536 p=ExpandBuffer(scanline+j+1,&number_pixels,bits_per_pixel);
537 for (i=0; i < (ssize_t) length; i++)
539 if ((q-pixels+number_pixels) <= *extent)
540 (void) CopyMagickMemory(q,p,(size_t) number_pixels);
543 j+=(ssize_t) bytes_per_pixel+1;
546 scanline=(unsigned char *) RelinquishMagickMemory(scanline);
551 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
555 % E n c o d e I m a g e %
559 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
561 % EncodeImage compresses an image via Macintosh pack bits encoding
562 % for Macintosh PICT images.
564 % The format of the EncodeImage method is:
566 % size_t EncodeImage(Image *image,const unsigned char *scanline,
567 % const size_t bytes_per_line,unsigned char *pixels)
569 % A description of each parameter follows:
571 % o image: the address of a structure of type Image.
573 % o scanline: A pointer to an array of characters to pack.
575 % o bytes_per_line: the number of bytes in a scanline.
577 % o pixels: A pointer to an array of characters where the packed
578 % characters are stored.
581 static size_t EncodeImage(Image *image,const unsigned char *scanline,
582 const size_t bytes_per_line,unsigned char *pixels)
585 #define MaxPackbitsRunlength 128
587 register const unsigned char
593 register unsigned char
610 assert(image != (Image *) NULL);
611 assert(image->signature == MagickSignature);
612 if (image->debug != MagickFalse)
613 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
614 assert(scanline != (unsigned char *) NULL);
615 assert(pixels != (unsigned char *) NULL);
618 p=scanline+(bytes_per_line-1);
621 for (i=(ssize_t) bytes_per_line-1; i >= 0; i--)
628 while (runlength > 0)
630 *q++=(unsigned char) index;
633 if (count == MaxCount)
635 *q++=(unsigned char) (MaxCount-1);
642 *q++=(unsigned char) (count-1);
644 while (runlength > 0)
646 repeat_count=runlength;
647 if (repeat_count > MaxPackbitsRunlength)
648 repeat_count=MaxPackbitsRunlength;
649 *q++=(unsigned char) index;
650 *q++=(unsigned char) (257-repeat_count);
651 runlength-=repeat_count;
660 while (runlength > 0)
662 *q++=(unsigned char) index;
665 if (count == MaxCount)
667 *q++=(unsigned char) (MaxCount-1);
674 *q++=(unsigned char) (count-1);
676 while (runlength > 0)
678 repeat_count=runlength;
679 if (repeat_count > MaxPackbitsRunlength)
680 repeat_count=MaxPackbitsRunlength;
681 *q++=(unsigned char) index;
682 *q++=(unsigned char) (257-repeat_count);
683 runlength-=repeat_count;
687 *q++=(unsigned char) (count-1);
689 Write the number of and the packed length.
691 length=(size_t) (q-pixels);
692 if (bytes_per_line > 200)
694 (void) WriteBlobMSBShort(image,(unsigned short) length);
699 (void) WriteBlobByte(image,(unsigned char) length);
705 (void) WriteBlobByte(image,*q);
711 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
719 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
721 % IsPICT()() returns MagickTrue if the image format type, identified by the
722 % magick string, is PICT.
724 % The format of the ReadPICTImage method is:
726 % MagickBooleanType IsPICT(const unsigned char *magick,const size_t length)
728 % A description of each parameter follows:
730 % o magick: compare image format pattern against these bytes.
732 % o length: Specifies the length of the magick string.
735 static MagickBooleanType IsPICT(const unsigned char *magick,const size_t length)
740 Embedded OLE2 macintosh have "PICT" instead of 512 platform header.
742 if (memcmp(magick,"PICT",4) == 0)
746 if (memcmp(magick+522,"\000\021\002\377\014\000",6) == 0)
751 #if !defined(macintosh)
753 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
757 % R e a d P I C T I m a g e %
761 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
763 % ReadPICTImage() reads an Apple Macintosh QuickDraw/PICT image file
764 % and returns it. It allocates the memory necessary for the new Image
765 % structure and returns a pointer to the new image.
767 % The format of the ReadPICTImage method is:
769 % Image *ReadPICTImage(const ImageInfo *image_info,
770 % ExceptionInfo *exception)
772 % A description of each parameter follows:
774 % o image_info: the image info.
776 % o exception: return any errors or warnings in this structure.
780 static inline size_t MagickMax(const size_t x,
788 static MagickBooleanType ReadRectangle(Image *image,PICTRectangle *rectangle)
790 rectangle->top=(short) ReadBlobMSBShort(image);
791 rectangle->left=(short) ReadBlobMSBShort(image);
792 rectangle->bottom=(short) ReadBlobMSBShort(image);
793 rectangle->right=(short) ReadBlobMSBShort(image);
794 if ((rectangle->left > rectangle->right) ||
795 (rectangle->top > rectangle->bottom))
800 static Image *ReadPICTImage(const ImageInfo *image_info,
801 ExceptionInfo *exception)
804 geometry[MaxTextExtent],
851 assert(image_info != (const ImageInfo *) NULL);
852 assert(image_info->signature == MagickSignature);
853 if (image_info->debug != MagickFalse)
854 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
855 image_info->filename);
856 assert(exception != (ExceptionInfo *) NULL);
857 assert(exception->signature == MagickSignature);
858 image=AcquireImage(image_info,exception);
859 status=OpenBlob(image_info,image,ReadBinaryBlobMode,exception);
860 if (status == MagickFalse)
862 image=DestroyImageList(image);
863 return((Image *) NULL);
868 pixmap.bits_per_pixel=0;
869 pixmap.component_count=0;
871 Skip header : 512 for standard PICT and 4, ie "PICT" for OLE2.
873 header_ole[0]=ReadBlobByte(image);
874 header_ole[1]=ReadBlobByte(image);
875 header_ole[2]=ReadBlobByte(image);
876 header_ole[3]=ReadBlobByte(image);
877 if (!((header_ole[0] == 0x50) && (header_ole[1] == 0x49) &&
878 (header_ole[2] == 0x43) && (header_ole[3] == 0x54 )))
879 for (i=0; i < 508; i++)
880 (void) ReadBlobByte(image);
881 (void) ReadBlobMSBShort(image); /* skip picture size */
882 if (ReadRectangle(image,&frame) == MagickFalse)
883 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
884 while ((c=ReadBlobByte(image)) == 0) ;
886 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
887 version=ReadBlobByte(image);
890 c=ReadBlobByte(image);
892 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
896 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
897 if ((frame.left < 0) || (frame.right < 0) || (frame.top < 0) ||
898 (frame.bottom < 0) || (frame.left >= frame.right) ||
899 (frame.top >= frame.bottom))
900 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
906 image->columns=1UL*(frame.right-frame.left);
907 image->rows=1UL*(frame.bottom-frame.top);
908 image->resolution.x=DefaultResolution;
909 image->resolution.y=DefaultResolution;
910 image->units=UndefinedResolution;
912 Interpret PICT opcodes.
915 for (code=0; EOFBlob(image) == MagickFalse; )
917 if ((image_info->ping != MagickFalse) && (image_info->number_scenes != 0))
918 if (image->scene >= (image_info->scene+image_info->number_scenes-1))
920 if ((version == 1) || ((TellBlob(image) % 2) != 0))
921 code=ReadBlobByte(image);
923 code=(int) ReadBlobMSBShort(image);
928 if (image->debug != MagickFalse)
929 (void) LogMagickEvent(CoderEvent,GetMagickModule(),"%04X:",code);
933 if (image->debug != MagickFalse)
934 (void) LogMagickEvent(CoderEvent,GetMagickModule(),
935 " %04X %s: %s",code,codes[code].name,codes[code].description);
943 length=ReadBlobMSBShort(image);
944 if (length != 0x000a)
946 for (i=0; i < (ssize_t) (length-2); i++)
947 (void) ReadBlobByte(image);
950 if (ReadRectangle(image,&frame) == MagickFalse)
951 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
952 if (((frame.left & 0x8000) != 0) || ((frame.top & 0x8000) != 0))
954 image->columns=1UL*(frame.right-frame.left);
955 image->rows=1UL*(frame.bottom-frame.top);
956 (void) SetImageBackgroundColor(image,exception);
971 Skip pattern definition.
973 pattern=1L*ReadBlobMSBShort(image);
974 for (i=0; i < 8; i++)
975 (void) ReadBlobByte(image);
978 for (i=0; i < 5; i++)
979 (void) ReadBlobByte(image);
983 ThrowReaderException(CorruptImageError,"UnknownPatternType");
984 length=ReadBlobMSBShort(image);
985 if (ReadRectangle(image,&frame) == MagickFalse)
986 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
988 image->depth=1UL*pixmap.component_size;
989 image->resolution.x=1.0*pixmap.horizontal_resolution;
990 image->resolution.y=1.0*pixmap.vertical_resolution;
991 image->units=PixelsPerInchResolution;
992 (void) ReadBlobMSBLong(image);
993 flags=1L*ReadBlobMSBShort(image);
994 length=ReadBlobMSBShort(image);
995 for (i=0; i <= (ssize_t) length; i++)
996 (void) ReadBlobMSBLong(image);
997 width=1UL*(frame.bottom-frame.top);
998 height=1UL*(frame.right-frame.left);
999 if (pixmap.bits_per_pixel <= 8)
1001 if (pixmap.bits_per_pixel == 16)
1007 for (i=0; i < (ssize_t) (length*height); i++)
1008 (void) ReadBlobByte(image);
1011 for (j=0; j < (int) height; j++)
1013 for (j=0; j < (ssize_t) ReadBlobMSBShort(image); j++)
1014 (void) ReadBlobByte(image);
1016 for (j=0; j < (ssize_t) ReadBlobByte(image); j++)
1017 (void) ReadBlobByte(image);
1023 Initialize image background color.
1025 image->background_color.red=(Quantum)
1026 ScaleShortToQuantum(ReadBlobMSBShort(image));
1027 image->background_color.green=(Quantum)
1028 ScaleShortToQuantum(ReadBlobMSBShort(image));
1029 image->background_color.blue=(Quantum)
1030 ScaleShortToQuantum(ReadBlobMSBShort(image));
1043 Skip polygon or region.
1045 length=ReadBlobMSBShort(image);
1046 for (i=0; i < (ssize_t) (length-2); i++)
1047 (void) ReadBlobByte(image);
1064 register unsigned char
1077 Pixmap clipped by a rectangle.
1080 if ((code != 0x9a) && (code != 0x9b))
1081 bytes_per_line=1L*ReadBlobMSBShort(image);
1084 (void) ReadBlobMSBShort(image);
1085 (void) ReadBlobMSBShort(image);
1086 (void) ReadBlobMSBShort(image);
1088 if (ReadRectangle(image,&frame) == MagickFalse)
1089 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
1091 Initialize tile image.
1093 tile_image=CloneImage(image,1UL*(frame.right-frame.left),
1094 1UL*(frame.bottom-frame.top),MagickTrue,exception);
1095 if (tile_image == (Image *) NULL)
1096 return((Image *) NULL);
1097 if ((code == 0x9a) || (code == 0x9b) ||
1098 ((bytes_per_line & 0x8000) != 0))
1101 tile_image->depth=1UL*pixmap.component_size;
1102 tile_image->alpha_trait=pixmap.component_count == 4 ?
1103 BlendPixelTrait : UndefinedPixelTrait;
1104 tile_image->resolution.x=(double) pixmap.horizontal_resolution;
1105 tile_image->resolution.y=(double) pixmap.vertical_resolution;
1106 tile_image->units=PixelsPerInchResolution;
1107 if (tile_image->alpha_trait == BlendPixelTrait)
1108 image->alpha_trait=tile_image->alpha_trait;
1110 if ((code != 0x9a) && (code != 0x9b))
1113 Initialize colormap.
1115 tile_image->colors=2;
1116 if ((bytes_per_line & 0x8000) != 0)
1118 (void) ReadBlobMSBLong(image);
1119 flags=1L*ReadBlobMSBShort(image);
1120 tile_image->colors=1UL*ReadBlobMSBShort(image)+1;
1122 status=AcquireImageColormap(tile_image,tile_image->colors,
1124 if (status == MagickFalse)
1126 tile_image=DestroyImage(tile_image);
1127 ThrowReaderException(ResourceLimitError,
1128 "MemoryAllocationFailed");
1130 if ((bytes_per_line & 0x8000) != 0)
1132 for (i=0; i < (ssize_t) tile_image->colors; i++)
1134 j=ReadBlobMSBShort(image) % tile_image->colors;
1135 if ((flags & 0x8000) != 0)
1137 tile_image->colormap[j].red=(Quantum)
1138 ScaleShortToQuantum(ReadBlobMSBShort(image));
1139 tile_image->colormap[j].green=(Quantum)
1140 ScaleShortToQuantum(ReadBlobMSBShort(image));
1141 tile_image->colormap[j].blue=(Quantum)
1142 ScaleShortToQuantum(ReadBlobMSBShort(image));
1147 for (i=0; i < (ssize_t) tile_image->colors; i++)
1149 tile_image->colormap[i].red=(Quantum) (QuantumRange-
1150 tile_image->colormap[i].red);
1151 tile_image->colormap[i].green=(Quantum) (QuantumRange-
1152 tile_image->colormap[i].green);
1153 tile_image->colormap[i].blue=(Quantum) (QuantumRange-
1154 tile_image->colormap[i].blue);
1158 if (ReadRectangle(image,&source) == MagickFalse)
1159 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
1160 if (ReadRectangle(image,&destination) == MagickFalse)
1161 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
1162 (void) ReadBlobMSBShort(image);
1163 if ((code == 0x91) || (code == 0x99) || (code == 0x9b))
1168 length=ReadBlobMSBShort(image);
1169 for (i=0; i < (ssize_t) (length-2); i++)
1170 (void) ReadBlobByte(image);
1172 if ((code != 0x9a) && (code != 0x9b) &&
1173 (bytes_per_line & 0x8000) == 0)
1174 pixels=DecodeImage(image,tile_image,1UL*bytes_per_line,1,&extent,
1177 pixels=DecodeImage(image,tile_image,1UL*bytes_per_line,1U*
1178 pixmap.bits_per_pixel,&extent,exception);
1179 if (pixels == (unsigned char *) NULL)
1181 tile_image=DestroyImage(tile_image);
1182 ThrowReaderException(ResourceLimitError,
1183 "MemoryAllocationFailed");
1186 Convert PICT tile image to pixel packets.
1189 for (y=0; y < (ssize_t) tile_image->rows; y++)
1191 if (p > (pixels+extent+image->columns))
1192 ThrowReaderException(CorruptImageError,"NotEnoughPixelData");
1193 q=QueueAuthenticPixels(tile_image,0,y,tile_image->columns,1,
1195 if (q == (Quantum *) NULL)
1197 for (x=0; x < (ssize_t) tile_image->columns; x++)
1199 if (tile_image->storage_class == PseudoClass)
1201 index=ConstrainColormapIndex(tile_image,*p,exception);
1202 SetPixelIndex(tile_image,index,q);
1203 SetPixelRed(tile_image,
1204 tile_image->colormap[(ssize_t) index].red,q);
1205 SetPixelGreen(tile_image,
1206 tile_image->colormap[(ssize_t) index].green,q);
1207 SetPixelBlue(tile_image,
1208 tile_image->colormap[(ssize_t) index].blue,q);
1212 if (pixmap.bits_per_pixel == 16)
1216 SetPixelRed(tile_image,ScaleCharToQuantum(
1217 (unsigned char) ((i & 0x7c) << 1)),q);
1218 SetPixelGreen(tile_image,ScaleCharToQuantum(
1219 (unsigned char) (((i & 0x03) << 6) |
1220 ((j & 0xe0) >> 2))),q);
1221 SetPixelBlue(tile_image,ScaleCharToQuantum(
1222 (unsigned char) ((j & 0x1f) << 3)),q);
1225 if (tile_image->alpha_trait != BlendPixelTrait)
1227 if (p > (pixels+extent+2*image->columns))
1228 ThrowReaderException(CorruptImageError,
1229 "NotEnoughPixelData");
1230 SetPixelRed(tile_image,ScaleCharToQuantum(*p),q);
1231 SetPixelGreen(tile_image,ScaleCharToQuantum(
1232 *(p+tile_image->columns)),q);
1233 SetPixelBlue(tile_image,ScaleCharToQuantum(
1234 *(p+2*tile_image->columns)),q);
1238 if (p > (pixels+extent+3*image->columns))
1239 ThrowReaderException(CorruptImageError,
1240 "NotEnoughPixelData");
1241 SetPixelAlpha(tile_image,ScaleCharToQuantum(*p),q);
1242 SetPixelRed(tile_image,ScaleCharToQuantum(
1243 *(p+tile_image->columns)),q);
1244 SetPixelGreen(tile_image,ScaleCharToQuantum(
1245 *(p+2*tile_image->columns)),q);
1246 SetPixelBlue(tile_image,ScaleCharToQuantum(
1247 *(p+3*tile_image->columns)),q);
1251 q+=GetPixelChannels(tile_image);
1253 if (SyncAuthenticPixels(tile_image,exception) == MagickFalse)
1255 if ((tile_image->storage_class == DirectClass) &&
1256 (pixmap.bits_per_pixel != 16))
1258 p+=(pixmap.component_count-1)*tile_image->columns;
1262 status=SetImageProgress(image,LoadImageTag,y,tile_image->rows);
1263 if (status == MagickFalse)
1266 pixels=(unsigned char *) RelinquishMagickMemory(pixels);
1267 if (jpeg == MagickFalse)
1268 if ((code == 0x9a) || (code == 0x9b) ||
1269 ((bytes_per_line & 0x8000) != 0))
1270 (void) CompositeImage(image,tile_image,CopyCompositeOp,
1271 MagickTrue,destination.left,destination.top,exception);
1272 tile_image=DestroyImage(tile_image);
1286 type=ReadBlobMSBShort(image);
1287 length=ReadBlobMSBShort(image);
1290 (void) ReadBlobMSBLong(image);
1294 info=(unsigned char *) AcquireQuantumMemory(length,sizeof(*info));
1295 if (info == (unsigned char *) NULL)
1297 count=ReadBlob(image,length,info);
1305 profile=BlobToStringInfo((const void *) NULL,length);
1306 SetStringInfoDatum(profile,info);
1307 status=SetImageProfile(image,"icc",profile,exception);
1308 profile=DestroyStringInfo(profile);
1309 if (status == MagickFalse)
1310 ThrowReaderException(ResourceLimitError,
1311 "MemoryAllocationFailed");
1318 profile=BlobToStringInfo((const void *) NULL,length);
1319 SetStringInfoDatum(profile,info);
1320 status=SetImageProfile(image,"iptc",profile,exception);
1321 if (status == MagickFalse)
1322 ThrowReaderException(ResourceLimitError,
1323 "MemoryAllocationFailed");
1324 profile=DestroyStringInfo(profile);
1330 info=(unsigned char *) RelinquishMagickMemory(info);
1336 Skip to next op code.
1340 if (codes[code].length == -1)
1341 (void) ReadBlobMSBShort(image);
1343 for (i=0; i < (ssize_t) codes[code].length; i++)
1344 (void) ReadBlobByte(image);
1353 for (i=0; i < 24; i++)
1354 (void) ReadBlobByte(image);
1357 if (((code >= 0xb0) && (code <= 0xcf)) ||
1358 ((code >= 0x8000) && (code <= 0x80ff)))
1378 read_info=CloneImageInfo(image_info);
1379 SetImageInfoBlob(read_info,(void *) NULL,0);
1381 unique_file=AcquireUniqueFileResource(read_info->filename);
1382 if (unique_file != -1)
1383 file=fdopen(unique_file,"wb");
1384 if ((unique_file == -1) || (file == (FILE *) NULL))
1386 if (file != (FILE *) NULL)
1387 (void) fclose(file);
1388 (void) CopyMagickString(image->filename,read_info->filename,
1390 ThrowFileException(exception,FileOpenError,
1391 "UnableToCreateTemporaryFile",image->filename);
1392 image=DestroyImageList(image);
1393 return((Image *) NULL);
1395 length=ReadBlobMSBLong(image);
1396 for (i=0; i < 6; i++)
1397 (void) ReadBlobMSBLong(image);
1398 if (ReadRectangle(image,&frame) == MagickFalse)
1400 (void) fclose(file);
1401 ThrowReaderException(CorruptImageError,"ImproperImageHeader");
1403 for (i=0; i < 122; i++)
1404 (void) ReadBlobByte(image);
1405 for (i=0; i < (ssize_t) (length-154); i++)
1407 c=ReadBlobByte(image);
1408 (void) fputc(c,file);
1410 (void) fclose(file);
1411 (void) close(unique_file);
1412 tile_image=ReadImage(read_info,exception);
1413 (void) RelinquishUniqueFileResource(read_info->filename);
1414 read_info=DestroyImageInfo(read_info);
1415 if (tile_image == (Image *) NULL)
1417 (void) FormatLocaleString(geometry,MaxTextExtent,"%.20gx%.20g",
1418 (double) MagickMax(image->columns,tile_image->columns),
1419 (double) MagickMax(image->rows,tile_image->rows));
1420 (void) SetImageExtent(image,
1421 MagickMax(image->columns,tile_image->columns),
1422 MagickMax(image->rows,tile_image->rows),exception);
1423 (void) TransformImageColorspace(image,tile_image->colorspace,exception);
1424 (void) CompositeImage(image,tile_image,CopyCompositeOp,MagickTrue,
1425 frame.left,frame.right,exception);
1426 image->compression=tile_image->compression;
1427 tile_image=DestroyImage(tile_image);
1430 if ((code == 0xff) || (code == 0xffff))
1432 if (((code >= 0xd0) && (code <= 0xfe)) ||
1433 ((code >= 0x8100) && (code <= 0xffff)))
1438 length=ReadBlobMSBShort(image);
1439 for (i=0; i < (ssize_t) length; i++)
1440 (void) ReadBlobByte(image);
1443 if ((code >= 0x100) && (code <= 0x7fff))
1448 length=(size_t) ((code >> 7) & 0xff);
1449 for (i=0; i < (ssize_t) length; i++)
1450 (void) ReadBlobByte(image);
1454 (void) CloseBlob(image);
1455 return(GetFirstImageInList(image));
1460 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1464 % R e g i s t e r P I C T I m a g e %
1468 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1470 % RegisterPICTImage() adds attributes for the PICT image format to
1471 % the list of supported formats. The attributes include the image format
1472 % tag, a method to read and/or write the format, whether the format
1473 % supports the saving of more than one frame to the same file or blob,
1474 % whether the format supports native in-memory I/O, and a brief
1475 % description of the format.
1477 % The format of the RegisterPICTImage method is:
1479 % size_t RegisterPICTImage(void)
1482 ModuleExport size_t RegisterPICTImage(void)
1487 entry=SetMagickInfo("PCT");
1488 entry->decoder=(DecodeImageHandler *) ReadPICTImage;
1489 entry->encoder=(EncodeImageHandler *) WritePICTImage;
1490 entry->adjoin=MagickFalse;
1491 entry->seekable_stream=MagickTrue;
1492 entry->description=ConstantString("Apple Macintosh QuickDraw/PICT");
1493 entry->magick=(IsImageFormatHandler *) IsPICT;
1494 entry->module=ConstantString("PICT");
1495 (void) RegisterMagickInfo(entry);
1496 entry=SetMagickInfo("PICT");
1497 entry->decoder=(DecodeImageHandler *) ReadPICTImage;
1498 entry->encoder=(EncodeImageHandler *) WritePICTImage;
1499 entry->adjoin=MagickFalse;
1500 entry->seekable_stream=MagickTrue;
1501 entry->description=ConstantString("Apple Macintosh QuickDraw/PICT");
1502 entry->magick=(IsImageFormatHandler *) IsPICT;
1503 entry->module=ConstantString("PICT");
1504 (void) RegisterMagickInfo(entry);
1505 return(MagickImageCoderSignature);
1509 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1513 % U n r e g i s t e r P I C T I m a g e %
1517 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1519 % UnregisterPICTImage() removes format registrations made by the
1520 % PICT module from the list of supported formats.
1522 % The format of the UnregisterPICTImage method is:
1524 % UnregisterPICTImage(void)
1527 ModuleExport void UnregisterPICTImage(void)
1529 (void) UnregisterMagickInfo("PCT");
1530 (void) UnregisterMagickInfo("PICT");
1534 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1538 % W r i t e P I C T I m a g e %
1542 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
1544 % WritePICTImage() writes an image to a file in the Apple Macintosh
1545 % QuickDraw/PICT image format.
1547 % The format of the WritePICTImage method is:
1549 % MagickBooleanType WritePICTImage(const ImageInfo *image_info,
1550 % Image *image,ExceptionInfo *exception)
1552 % A description of each parameter follows.
1554 % o image_info: the image info.
1556 % o image: The image.
1558 % o exception: return any errors or warnings in this structure.
1561 static MagickBooleanType WritePICTImage(const ImageInfo *image_info,
1562 Image *image,ExceptionInfo *exception)
1564 #define MaxCount 128
1565 #define PictCropRegionOp 0x01
1566 #define PictEndOfPictureOp 0xff
1567 #define PictJPEGOp 0x8200
1568 #define PictInfoOp 0x0C00
1569 #define PictInfoSize 512
1570 #define PictPixmapOp 0x9A
1571 #define PictPICTOp 0x98
1572 #define PictVersion 0x11
1593 destination_rectangle,
1598 register const Quantum
1624 Open output image file.
1626 assert(image_info != (const ImageInfo *) NULL);
1627 assert(image_info->signature == MagickSignature);
1628 assert(image != (Image *) NULL);
1629 assert(image->signature == MagickSignature);
1630 if (image->debug != MagickFalse)
1631 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename);
1632 if ((image->columns > 65535L) || (image->rows > 65535L))
1633 ThrowWriterException(ImageError,"WidthOrHeightExceedsLimit");
1634 assert(exception != (ExceptionInfo *) NULL);
1635 assert(exception->signature == MagickSignature);
1636 status=OpenBlob(image_info,image,WriteBinaryBlobMode,exception);
1637 if (status == MagickFalse)
1639 (void) TransformImageColorspace(image,sRGBColorspace,exception);
1641 Initialize image info.
1643 size_rectangle.top=0;
1644 size_rectangle.left=0;
1645 size_rectangle.bottom=(short) image->rows;
1646 size_rectangle.right=(short) image->columns;
1647 frame_rectangle=size_rectangle;
1648 crop_rectangle=size_rectangle;
1649 source_rectangle=size_rectangle;
1650 destination_rectangle=size_rectangle;
1652 row_bytes=(unsigned short) (image->columns | 0x8000);
1655 bounds.bottom=(short) image->rows;
1656 bounds.right=(short) image->columns;
1660 pixmap.pixel_type=0;
1661 pixmap.bits_per_pixel=8;
1662 pixmap.component_count=1;
1663 pixmap.component_size=8;
1664 pixmap.plane_bytes=0;
1668 x_resolution=image->resolution.x != 0.0 ? image->resolution.x :
1670 y_resolution=image->resolution.y != 0.0 ? image->resolution.y :
1672 storage_class=image->storage_class;
1673 if (image_info->compression == JPEGCompression)
1674 storage_class=DirectClass;
1675 if ((storage_class == DirectClass) || (image->alpha_trait == BlendPixelTrait))
1677 pixmap.component_count=image->alpha_trait ? 4 : 3;
1678 pixmap.pixel_type=16;
1679 pixmap.bits_per_pixel=32;
1680 pixmap.pack_type=0x04;
1682 row_bytes=(unsigned short) ((4*image->columns) | 0x8000);
1687 bytes_per_line=image->columns;
1688 if ((storage_class == DirectClass) || (image->alpha_trait == BlendPixelTrait))
1689 bytes_per_line*=image->alpha_trait ? 4 : 3;
1690 buffer=(unsigned char *) AcquireQuantumMemory(PictInfoSize,sizeof(*buffer));
1691 packed_scanline=(unsigned char *) AcquireQuantumMemory((size_t)
1692 (row_bytes+MaxCount),sizeof(*packed_scanline));
1693 scanline=(unsigned char *) AcquireQuantumMemory(row_bytes,sizeof(*scanline));
1694 if ((buffer == (unsigned char *) NULL) ||
1695 (packed_scanline == (unsigned char *) NULL) ||
1696 (scanline == (unsigned char *) NULL))
1697 ThrowWriterException(ResourceLimitError,"MemoryAllocationFailed");
1698 (void) ResetMagickMemory(scanline,0,row_bytes);
1699 (void) ResetMagickMemory(packed_scanline,0,(size_t) (row_bytes+MaxCount));
1701 Write header, header size, size bounding box, version, and reserved.
1703 (void) ResetMagickMemory(buffer,0,PictInfoSize);
1704 (void) WriteBlob(image,PictInfoSize,buffer);
1705 (void) WriteBlobMSBShort(image,0);
1706 (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.top);
1707 (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.left);
1708 (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.bottom);
1709 (void) WriteBlobMSBShort(image,(unsigned short) size_rectangle.right);
1710 (void) WriteBlobMSBShort(image,PictVersion);
1711 (void) WriteBlobMSBShort(image,0x02ff); /* version #2 */
1712 (void) WriteBlobMSBShort(image,PictInfoOp);
1713 (void) WriteBlobMSBLong(image,0xFFFE0000UL);
1715 Write full size of the file, resolution, frame bounding box, and reserved.
1717 (void) WriteBlobMSBShort(image,(unsigned short) x_resolution);
1718 (void) WriteBlobMSBShort(image,0x0000);
1719 (void) WriteBlobMSBShort(image,(unsigned short) y_resolution);
1720 (void) WriteBlobMSBShort(image,0x0000);
1721 (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.top);
1722 (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.left);
1723 (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.bottom);
1724 (void) WriteBlobMSBShort(image,(unsigned short) frame_rectangle.right);
1725 (void) WriteBlobMSBLong(image,0x00000000L);
1726 profile=GetImageProfile(image,"iptc");
1727 if (profile != (StringInfo *) NULL)
1729 (void) WriteBlobMSBShort(image,0xa1);
1730 (void) WriteBlobMSBShort(image,0x1f2);
1731 (void) WriteBlobMSBShort(image,(unsigned short)
1732 (GetStringInfoLength(profile)+4));
1733 (void) WriteBlobString(image,"8BIM");
1734 (void) WriteBlob(image,GetStringInfoLength(profile),
1735 GetStringInfoDatum(profile));
1737 profile=GetImageProfile(image,"icc");
1738 if (profile != (StringInfo *) NULL)
1740 (void) WriteBlobMSBShort(image,0xa1);
1741 (void) WriteBlobMSBShort(image,0xe0);
1742 (void) WriteBlobMSBShort(image,(unsigned short)
1743 (GetStringInfoLength(profile)+4));
1744 (void) WriteBlobMSBLong(image,0x00000000UL);
1745 (void) WriteBlob(image,GetStringInfoLength(profile),
1746 GetStringInfoDatum(profile));
1747 (void) WriteBlobMSBShort(image,0xa1);
1748 (void) WriteBlobMSBShort(image,0xe0);
1749 (void) WriteBlobMSBShort(image,4);
1750 (void) WriteBlobMSBLong(image,0x00000002UL);
1753 Write crop region opcode and crop bounding box.
1755 (void) WriteBlobMSBShort(image,PictCropRegionOp);
1756 (void) WriteBlobMSBShort(image,0xa);
1757 (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.top);
1758 (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.left);
1759 (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.bottom);
1760 (void) WriteBlobMSBShort(image,(unsigned short) crop_rectangle.right);
1761 if (image_info->compression == JPEGCompression)
1775 jpeg_image=CloneImage(image,0,0,MagickTrue,exception);
1776 if (jpeg_image == (Image *) NULL)
1778 (void) CloseBlob(image);
1779 return(MagickFalse);
1781 jpeg_info=CloneImageInfo(image_info);
1782 (void) CopyMagickString(jpeg_info->magick,"JPEG",MaxTextExtent);
1784 blob=(unsigned char *) ImageToBlob(jpeg_info,jpeg_image,&length,
1786 jpeg_info=DestroyImageInfo(jpeg_info);
1787 if (blob == (unsigned char *) NULL)
1788 return(MagickFalse);
1789 jpeg_image=DestroyImage(jpeg_image);
1790 (void) WriteBlobMSBShort(image,PictJPEGOp);
1791 (void) WriteBlobMSBLong(image,(unsigned int) length+154);
1792 (void) WriteBlobMSBShort(image,0x0000);
1793 (void) WriteBlobMSBLong(image,0x00010000UL);
1794 (void) WriteBlobMSBLong(image,0x00000000UL);
1795 (void) WriteBlobMSBLong(image,0x00000000UL);
1796 (void) WriteBlobMSBLong(image,0x00000000UL);
1797 (void) WriteBlobMSBLong(image,0x00010000UL);
1798 (void) WriteBlobMSBLong(image,0x00000000UL);
1799 (void) WriteBlobMSBLong(image,0x00000000UL);
1800 (void) WriteBlobMSBLong(image,0x00000000UL);
1801 (void) WriteBlobMSBLong(image,0x40000000UL);
1802 (void) WriteBlobMSBLong(image,0x00000000UL);
1803 (void) WriteBlobMSBLong(image,0x00000000UL);
1804 (void) WriteBlobMSBLong(image,0x00000000UL);
1805 (void) WriteBlobMSBLong(image,0x00400000UL);
1806 (void) WriteBlobMSBShort(image,0x0000);
1807 (void) WriteBlobMSBShort(image,(unsigned short) image->rows);
1808 (void) WriteBlobMSBShort(image,(unsigned short) image->columns);
1809 (void) WriteBlobMSBShort(image,0x0000);
1810 (void) WriteBlobMSBShort(image,768);
1811 (void) WriteBlobMSBShort(image,0x0000);
1812 (void) WriteBlobMSBLong(image,0x00000000UL);
1813 (void) WriteBlobMSBLong(image,0x00566A70UL);
1814 (void) WriteBlobMSBLong(image,0x65670000UL);
1815 (void) WriteBlobMSBLong(image,0x00000000UL);
1816 (void) WriteBlobMSBLong(image,0x00000001UL);
1817 (void) WriteBlobMSBLong(image,0x00016170UL);
1818 (void) WriteBlobMSBLong(image,0x706C0000UL);
1819 (void) WriteBlobMSBLong(image,0x00000000UL);
1820 (void) WriteBlobMSBShort(image,768);
1821 (void) WriteBlobMSBShort(image,(unsigned short) image->columns);
1822 (void) WriteBlobMSBShort(image,(unsigned short) image->rows);
1823 (void) WriteBlobMSBShort(image,(unsigned short) x_resolution);
1824 (void) WriteBlobMSBShort(image,0x0000);
1825 (void) WriteBlobMSBShort(image,(unsigned short) y_resolution);
1826 (void) WriteBlobMSBLong(image,0x00000000UL);
1827 (void) WriteBlobMSBLong(image,0x87AC0001UL);
1828 (void) WriteBlobMSBLong(image,0x0B466F74UL);
1829 (void) WriteBlobMSBLong(image,0x6F202D20UL);
1830 (void) WriteBlobMSBLong(image,0x4A504547UL);
1831 (void) WriteBlobMSBLong(image,0x00000000UL);
1832 (void) WriteBlobMSBLong(image,0x00000000UL);
1833 (void) WriteBlobMSBLong(image,0x00000000UL);
1834 (void) WriteBlobMSBLong(image,0x00000000UL);
1835 (void) WriteBlobMSBLong(image,0x00000000UL);
1836 (void) WriteBlobMSBLong(image,0x0018FFFFUL);
1837 (void) WriteBlob(image,length,blob);
1838 if ((length & 0x01) != 0)
1839 (void) WriteBlobByte(image,'\0');
1840 blob=(unsigned char *) RelinquishMagickMemory(blob);
1843 Write picture opcode, row bytes, and picture bounding box, and version.
1845 if (storage_class == PseudoClass)
1846 (void) WriteBlobMSBShort(image,PictPICTOp);
1849 (void) WriteBlobMSBShort(image,PictPixmapOp);
1850 (void) WriteBlobMSBLong(image,(size_t) base_address);
1852 (void) WriteBlobMSBShort(image,(unsigned short) (row_bytes | 0x8000));
1853 (void) WriteBlobMSBShort(image,(unsigned short) bounds.top);
1854 (void) WriteBlobMSBShort(image,(unsigned short) bounds.left);
1855 (void) WriteBlobMSBShort(image,(unsigned short) bounds.bottom);
1856 (void) WriteBlobMSBShort(image,(unsigned short) bounds.right);
1858 Write pack type, pack size, resolution, pixel type, and pixel size.
1860 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.version);
1861 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.pack_type);
1862 (void) WriteBlobMSBLong(image,(unsigned int) pixmap.pack_size);
1863 (void) WriteBlobMSBShort(image,(unsigned short) (x_resolution+0.5));
1864 (void) WriteBlobMSBShort(image,0x0000);
1865 (void) WriteBlobMSBShort(image,(unsigned short) (y_resolution+0.5));
1866 (void) WriteBlobMSBShort(image,0x0000);
1867 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.pixel_type);
1868 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.bits_per_pixel);
1870 Write component count, size, plane bytes, table size, and reserved.
1872 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.component_count);
1873 (void) WriteBlobMSBShort(image,(unsigned short) pixmap.component_size);
1874 (void) WriteBlobMSBLong(image,(unsigned int) pixmap.plane_bytes);
1875 (void) WriteBlobMSBLong(image,(unsigned int) pixmap.table);
1876 (void) WriteBlobMSBLong(image,(unsigned int) pixmap.reserved);
1877 if (storage_class == PseudoClass)
1880 Write image colormap.
1882 (void) WriteBlobMSBLong(image,0x00000000L); /* color seed */
1883 (void) WriteBlobMSBShort(image,0L); /* color flags */
1884 (void) WriteBlobMSBShort(image,(unsigned short) (image->colors-1));
1885 for (i=0; i < (ssize_t) image->colors; i++)
1887 (void) WriteBlobMSBShort(image,(unsigned short) i);
1888 (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1889 image->colormap[i].red));
1890 (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1891 image->colormap[i].green));
1892 (void) WriteBlobMSBShort(image,ScaleQuantumToShort(
1893 image->colormap[i].blue));
1897 Write source and destination rectangle.
1899 (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.top);
1900 (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.left);
1901 (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.bottom);
1902 (void) WriteBlobMSBShort(image,(unsigned short) source_rectangle.right);
1903 (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.top);
1904 (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.left);
1905 (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.bottom);
1906 (void) WriteBlobMSBShort(image,(unsigned short) destination_rectangle.right);
1907 (void) WriteBlobMSBShort(image,(unsigned short) transfer_mode);
1912 if ((storage_class == PseudoClass) && (image->alpha_trait != BlendPixelTrait))
1913 for (y=0; y < (ssize_t) image->rows; y++)
1915 p=GetVirtualPixels(image,0,y,image->columns,1,exception);
1916 if (p == (const Quantum *) NULL)
1918 for (x=0; x < (ssize_t) image->columns; x++)
1920 scanline[x]=(unsigned char) GetPixelIndex(image,p);
1921 p+=GetPixelChannels(image);
1923 count+=EncodeImage(image,scanline,(size_t) (row_bytes & 0x7FFF),
1925 if (image->previous == (Image *) NULL)
1927 status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
1929 if (status == MagickFalse)
1934 if (image_info->compression == JPEGCompression)
1936 (void) ResetMagickMemory(scanline,0,row_bytes);
1937 for (y=0; y < (ssize_t) image->rows; y++)
1938 count+=EncodeImage(image,scanline,(size_t) (row_bytes & 0x7FFF),
1943 register unsigned char
1950 green=scanline+image->columns;
1951 blue=scanline+2*image->columns;
1952 opacity=scanline+3*image->columns;
1953 for (y=0; y < (ssize_t) image->rows; y++)
1955 p=GetVirtualPixels(image,0,y,image->columns,1,exception);
1956 if (p == (const Quantum *) NULL)
1959 green=scanline+image->columns;
1960 blue=scanline+2*image->columns;
1961 if (image->alpha_trait == BlendPixelTrait)
1964 red=scanline+image->columns;
1965 green=scanline+2*image->columns;
1966 blue=scanline+3*image->columns;
1968 for (x=0; x < (ssize_t) image->columns; x++)
1970 *red++=ScaleQuantumToChar(GetPixelRed(image,p));
1971 *green++=ScaleQuantumToChar(GetPixelGreen(image,p));
1972 *blue++=ScaleQuantumToChar(GetPixelBlue(image,p));
1973 if (image->alpha_trait == BlendPixelTrait)
1974 *opacity++=ScaleQuantumToChar((Quantum) (GetPixelAlpha(image,p)));
1975 p+=GetPixelChannels(image);
1977 count+=EncodeImage(image,scanline,bytes_per_line & 0x7FFF,
1979 if (image->previous == (Image *) NULL)
1981 status=SetImageProgress(image,SaveImageTag,(MagickOffsetType) y,
1983 if (status == MagickFalse)
1988 if ((count & 0x01) != 0)
1989 (void) WriteBlobByte(image,'\0');
1990 (void) WriteBlobMSBShort(image,PictEndOfPictureOp);
1991 offset=TellBlob(image);
1992 offset=SeekBlob(image,512,SEEK_SET);
1993 (void) WriteBlobMSBShort(image,(unsigned short) offset);
1994 scanline=(unsigned char *) RelinquishMagickMemory(scanline);
1995 packed_scanline=(unsigned char *) RelinquishMagickMemory(packed_scanline);
1996 buffer=(unsigned char *) RelinquishMagickMemory(buffer);
1997 (void) CloseBlob(image);